Build Information
Failed to build swift-temporal-sdk, reference 1.4.1 (1d7fcb), with Swift 6.1 for iOS using Xcode 16.3 on 16 Oct 2026 07:10:56 UTC.
Build Command
No build command. This typically means the build failed at an early stage where we determine the build command.Build Log
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RunAll
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Builder version: 5.1.3
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/apple/swift-temporal-sdk.git
Reference: 1.4.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-temporal-sdk
* tag 1.4.1 -> FETCH_HEAD
HEAD is now at 1d7fcbf Support SwiftSyntax versions 601.0.1 up to (not including) 605.0.0 (#202)
Submodule path 'dependencies/sdk-core': checked out '6e90e6d55ef31d82fff94280276e56b70fa384fe'
Submodule 'dependencies/sdk-core' (https://github.com/temporalio/sdk-core.git) registered for path 'dependencies/sdk-core'
Cloning into '/Users/admin/builder/spi-builder-workspace/dependencies/sdk-core'...
Cloned https://github.com/apple/swift-temporal-sdk.git
Revision (git rev-parse @):
1d7fcbf3bd6a60dcfad50accb0a800da6280c75e
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-temporal-sdk.git at 1.4.1
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Build
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Selected platform: iOS
Swift version: 6.1
Building package at path: $PWD
https://github.com/apple/swift-temporal-sdk.git
https://github.com/apple/swift-temporal-sdk.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
error: fatalError
Command line invocation:
/Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
spi-builder-workspace: (null)
2026-10-16 00:10:55.570 xcodebuild[513:2938] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-16-10_00-10-0055.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Command line invocation:
/Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
spi-builder-workspace: (null)
2026-10-16 00:10:56.471 xcodebuild[533:3082] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-16-10_00-10-0056.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 iOS